Motor-plow.



A. A. WAITE.

MOTOR PLOW.

APPLICATION FILED JAN.23,1912,

14?,3M mem-ed ne@ 17,191.2.

z SHEETS-SHEET 1.

@Vil/Mmm A A.. A. WAITB.

MOTOR PLOW.

APPLICATION FILED JAN. 23, 1912.

Patented Dec. 1'?, 191.2.

2 SHEETS-SHEET 2..

Moron-PLOW.

' 1,947,34411 I Speeiicaton of Letters Patent. Patentgd De@ 17, 19113 IApplication filed January 23, 1912. Serial No. 672,806.

To all whom t may concern: 0n each end of the driving shaft 12 are 'Beit known that I, ALPHA A. VVAITE, a mounted two ratchet clutch-members`16 and citizen of the United States, residing at 17, respectively,between which nembers is La Harpe, in the county of Allen and Stateslidably mounted a sprocket wheel 18 haw of Kansas, have inventedcertain new and ing ratchet clutch-teeth 19 and 20,'respec- 60 usefulImprovements in Motor-Flows, of tively, on opposite sides. The sprocketwhich the following is a specification. wheel 18 on one side of theinichine is con- This invention relates to that class of nected by asprocket chain i to a sprocket plows which are self-propelled, a plowca'rwheel 22 connected to the traction wheel on riage being providedwhich is driven by a the corresponding side ci' Lne machine, and 65motor, preferably an internal combustion the sprocket wheel 18 on theother side of engine; and it is the' object of the invention the machineis geared in like manner to the to provide a plow of this kind embodyingtraction wheel on that side of the machine. certain novel features ofconstruction to be The sprocket wheels 18 are adjustable so hereinafterdescribed and claimed. as to bring their clutch-teeth 19 into locking 70A further object of the invention is to engagement with the teeth ofAthe clutchprovide an improved support for the 'plowmembers 16, andtheir clutch-teeth 20 into Ashares whereby the same may be readilyengagement with the clutch-members 17. raised and lowered. The sprocketwheels are loose on the shaft I V20 In order that the invent-ion may bebetter so that no motion is transmitted when they 75 understood,reference is had to the accomare disconnected from the clutch-members.panying drawings forming a part of this The clutch-members 16 aredesigned to drive specification, in which drawingsthe sprocket wheelsforwardly when the Figure 1 is a plan view of the machine; shaft isturning in 'that direction, and the Fig. 2 is a side elevation thereof;Fig. 3 is clutch-members 17 drive the sprocket wheels 8o a transversesection on'the line 3-3 of Fig. in a reverse direction when the. shaftis re- 1; F igjll: is a detail in perspective showing versed. Suitableguides 23 for th'echains the plow lift; Fig. 5 is a detail in perspec 21are provided. The extremities of the tive showing the automatic clutchmechadriving shaft 12 are supported in brackets nism; Fig. 6 is asectional detail of the ele- 24 carried by the side bars 1. 85 vatingmechanism of the front support of By the herein described driving means,the plow beams. the machine can be run forward or back- Referringspecifically to the drawings, 1 ward, and as the driving means of thetwo denotes the side bars ofthe chassis of a plow traction wheels areindependent, either one carriage having steering wheels 2 at the of saidwheels may be thrown out of gear 90 front, and traction wheels 3 and 4,respecwhen making turns. Foot pedals 25 are tively, at the rear, thewheel 3 being on the provided for shifting the sprocket wheels 18.furrow side, and the wheel 4 on the land The stub axles 5 carry disks 26having side. The steering wheels are carried by grooved peripheries toreceive a steering stub axles 5 which are pivotally connected chain 27.The chain passes around the 95 to the front axle 6, and between thelatter disks, and extends inwardly to a shaft 28 and the chassis f areinterposed elliptic o fn which it is wound in such a manner that.springs 7. v lwhen the shaft is rotated, the stub axles On the chassis,near its front end, is are `swung on their pivots, thereby shifting '45mounted a motor 8 which may bean ordi` the front wheels 2 to steer themachine. 100" nary internal-combustion engine obtaining The disks 26 arealso connected by a cross its fuel s-upply'from a tank 9.* y'llhe crankrod 29. shaft 10 of the engine is connected by bevel A hand, as well asal power, steering gear gears 11 to a driving shaft 12 extending 'isprovided. rlhis mechanism comprises the 4transversely of the carriageand mountedin following instrumentalities: Connected to 105 suitablebearings carried by the'side bars 1.- the driving shaft 12, 'so as -torotate therejA suitable transmission gearingis provided, with, are', twofriction disks 30 between the same being inclosed in; acase 13. Awhichis'located a friction wheel 31 which clutch 14 is also provided,the same being latter'is adjustable so that it may be lacedoperatedv bya. foot pedal 1 5.. i incontact with either one of saiddis s ac- 1m,wheel is normally Vdisengaged from both disks, Ait being held. in thisposition by springs 35 interposed between said disks and the sleeve Onthe 'shaft 32 isl made fast a sprocket wheel 36 which is connected by achain 37 to a sprocket wheel 38 on a shaft 39 connected to the windingshaft 28 f by a mechanism which is the subject matter of a companionapplication, No. 622,966,

filed April 21, 1911. The manual steering device is a hand wheel 40carried by a shaft 41 which is, geared to the shaft39 by bevel gears 42.

If it is desired to steer the machine by power, it is necessary only toplace the wheel 31 in engagement with one or the other of the frictiondisks 30, according to the-direction the machine'is to take, whereuponthe motion of the shaft 12 is transmitted to the shaft 39, and thelatter, by reason of its connection with the shaft 28, rotates thelatter and through the chain 27 shifts the steering wheels as alreadydescribed. The same action takes place when the shaft 39 is operated bylhand from the steering wheel 40.

When the Inachine is being driven over rough roads, it is desirable toprotect the motor 8 from being jarred, for which pur# pose the springs 7are provided. However, when the machine is at work in the field, 'themotor does not need this protection, and it is also desirable to holdthe frame steady, as otherwise it would 'rack the plowshares. In ordertol prevent action of the springs 7 for the purpose stated, there islocated on the axle 6, midway between its ends,-an upstanding stud 62which extends beneath and into contact with the front portion of thechassis, and prevents the same from springing up and down when themachine is in operation. At all other times the stud will be removed, itbeing fastened to the axle by a clamp 63 held in place by a set screw64.

The traction wheel 3, as already'stated, is on the furrow side, and itis adjustable vertically in order that the machine may be leveled. Thisvertical adjustment is effected by mounting the axle 65 of said wheel ina block 66 which block is slidable up` and down in a frame 67 carried`by the side barl 1 of the chassis. Through the top ofv the frame isthreaded a screw 682 which is connected to the block. 66,.and whenoperated adjusts the same vertically 'to effect The to one being carriedby beams 74 which latter arepivotally connected at their front ends on atransverse horizontal shaft 75 so that they may be swung in a verticalplaneto raise and lower the plowshares. Above .the rear.

ends of the-plow beams is located a transf verse"horizontal shaft 7 6having a crank bend 77. The two outside plow beams carry longitudinallyslotted bars 78, the slot-s' of said bars being indicated at 79. On thecrank bends 77 are mounted depending arms 80 which carry rollers 81,these rollers working inthe slots 79. On the shaft 76 are sprocketwheels 82 which are connected by chains 83 to sprocket wheels 84 on ashaft 85 extending parallelto the driving shaft 12, and geared theretoby a chain 86 passing over a sprocket wheel 87 on the shaft 12, and asprocket l wheel 88 on the shaft 85. The sprocket wheel 88 is loose onthe shaft 85 and a clutch 894 is provided for locking said sprocketwheel vto the shaft. When the sprocket wheel 88 is clutched to the shaft85, the chains 83 transmit the motion of said shaft to the shaft 76.Rota-ry movement of the shaft 7 6`swings the crank bend 77 thereofvertically, and through the connection between the same and the bar 78swings the plow beams 74 up or down according to the direction in whichthe shaft 76 is rotated, thus raising or lowering the plowshares 7AMeansare provided for automatically unlocking the shaft 85 when theplowshares have been lifted-out of the ground. To effect this automaticunclutching of the shaft, a shifter lever 90 is cohnected to the clutch89. On this lever is adjustably mounted an arm 91 extending obliquelytherefrom into the path ofthe front end of the middle plow beam 74, saidarm being so shaped that when the said plow beam comes in contacttherewith as it is elevated, it swings the lever 90 in a direction todisengage the clutch 89. The lever 90 also has a foot pedal 92 foractuating the same to` engage the clutch. .The shaft 85 is also providedwith a lockvto prevent the plowshares from dropping down after they havebeen 'elevated. This lock comprises a ratchet disk 93 made fast to oneend of the shaft, and engagedjby a pivoted pawl 94 connected to a footpedal '95. l

The shaft 75. .is supported in;

adjustable bearings, said bearinos' compris- -ing blocks 9,6 which areslidable up and down in a frame 97 carried by the side bars 1. Handlevers 98, provided with suitable vertically 'and down in frames 101carried by the side bars 1. Hand levers 102 are connected to the bearingblocks, whereby the latter are adjusted up and down in the frames 100,said levers being provided with suitable locking devices 103.

Thepurpose of the herein described veri tical adjustment of the shafts 75 and 76 is to set the .plowshares at the desireddepth. The plowsharesare raised out of the ground by operating the shaft 76 as alreadydescribed.

On the axle of the traction-wheel 3 is also made fast a sprocket wheel104 which is adapted to be geared to a pulverizer or barrow to drive thesame.

l claim:

1. A plow comprising a carriage, pivoted plow beams mounted thereon,vertically ad a.

justable bearings mounted on the carriage, a shaft supported in saidbearings, said shaft having an operative connectionwith the rear. endsof the plow beams, and means for rotating the shaft to elevate and lowerthe plow beams.

2. A plow comprising a carriage, pivoted low beams mounted on thecarriage, lon gitudinally `slotted bars extending from the plow beams,vertically adjustable bearings mounted on theearriage, a'transverseshaft supported in said bearings, said shaft having a crank portion,arms carried by said crank portion and engageable with the slots of theaforesaid bars, and means :ter rotat ing the aforesaid shaft.

ln testimony whereof l aix my signa ture in presence of two WitnessesALlHA A. lWAITE.

Witnesses:

L. P. Enwarns, Lors Wmsoia.

